how long has it been since you have been on a bike? it could just be from not being on a bike for awhile. 2 1\2 hrs. is a long time if you have’nt been riding for some time. give it some time to see if the soreness goes away. just be faithfull about riding the bike and it probably go away. we are not 20 anymore 😆
This is also a good point. I thought of it, but it sounded like sore arms and wrists was not your only problem.